Overview

Features and Benefits

  • 6 A peak drive output capability
  • Internal turn off NFET, on resistance: <0.95 Ω
  • Internal turn on PFET, on resistance: <1.18 Ω
  • Split emitter overcurrent detection
  • Miller clamp output with gate sense input
  • Isolated fault output
  • Isolated temperature sensor read back
  • Propagation delay
    • Rising: 105 ns typical
    • Falling: 107 ns typical
  • Minimum pulse width: 70 ns
  • Operating junction temperature range (−40°C to +150°C)
  • VDD1 and VDD2 UVLO
  • ASC input
  • 8.3 mm creepage distance
  • Safety and regulatory approvals
    • 5 kV rms for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A
    • DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
  • VIORM = 849 VPEAK (reinforced/basic)
  • AEC-Q100 qualified for automotive applications

Product Details

The ADuM41371 is a single-channel gate driver specifically optimized for driving insulated gate bipolar transistors (IGBTs). Analog Devices, Inc., iCoupler® technology provides isolation between the input signal and the output gate drive.

The Analog Devices chip scale transformers also provide isolated communication of control information between the high voltage and low voltage domains of the chip. Information on the status of the chip can be read back from the dedicated fault outputs. The ADuM4137 provides isolated fault reporting for overcurrent events, remote temperature overheating events, undervoltage lockout (UVLO), and thermal shutdown (TSD)

Integrated onto the ADuM4137 is an overcurrent detection feature that protects the IGBT in case of overcurrent events. The split emitter overcurrent detection is coupled with a high speed, two-level turn off in case of faults.

The ADuM4137 provides a Miller clamp control signal for the external metal-oxide semiconductor field effect transistor (MOSFET) to provide robust IGBT turn off with a single rail supply when the gate voltage drops below 2.0 V (typical) and above GND2. Operation with unipolar secondary supplies is possible, with or without the Miller clamp operation.

A low gate voltage detection circuit can trigger a fault if the gate voltage does not go above the internal threshold (VVL) within the time allowed from turn on (tDVL). This circuit allows detection of IGBT device failures that exhibit gate shorts or other causes of weak drive.

The secondary falling UVLO is set to 11.24 V (typical) for common IGBT two-level plateau voltage levels.

The ADuM4137 provides for in field programming of temperature. Two temperature sensor pins allow isolated monitoring of system temperatures at the IGBTs, sensing diode gains and offsets by means of a serial port interface (SPI) bus on the primary side of the device. Values are stored on an EEPROM located on the secondary side. Additionally, programming is available for specific voltage offsets, temperature sensing reporting frequencies, and important delays.

The ASC pin on the secondary side on the ADuM4137 allows the driver to be switched on from the secondary side if no faults are present.

Applications

  • MOSFET/IGBT gate drivers
  • Photovoltaic (PV) inverters
  • Motor drives
  • Power supplies

1 Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329. Other patents pending.

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.